Calendar-watch



(No Model.) 2 Sheets--Sheet 1.

' B. ROSENBURG.

CALENDAR WATCH.

No. 412,796. PatentedOot. 15, 1889.

N. PETERS. mmmm w. Wznhingkm, v.1;

(No Model.) 2 Sheets-Sheet 2.

B. ROSENBURG.

CALENDAR WATCH.

No. 412,796. Patented Oct. 15, 1889.

WITNE 5 5 EE W Fl g- 1/!!111111/1/111 I'll/IIIIIIIIIIIIIIIIIJ N runs. nmmmwi-I' D c UNITED STATES PATENT OFFICE.

BERNHARDT ROSENBURG, OF IVALTHAM, MASSACHUSETTS.

CALENDAR-WATCH.

SPECIFICATION forming part of Letters Patent No. 412,796, dated October 15, 1889.

Application filed July 16, 1888. Serial No. 280,092x (No model.)

To all whom it may concern.-

Be it known that I, BEBNHARDT ROSEN- BURG, of VValtham, in the county of MiddleseX and State of Massachusetts, have invented a certain new and useful Improvement in Calenclar-\Vatches, of which the following, taken in connection with the accompanying drawings, is a specification.

My present invention relates to improvements in calendar-watches, and is fully represented in the following drawings as follows, viz:

Figure 1. represents the dials and hands and the manner in which the days of the month, the days of the week, and the months of the year are indicated. Figs. 2 and 3 represent the calendar train and the several parts of the same, also a regulator. Fig. i is a sectional view of the train and the conn ection of the several parts and the connection of the center arbor of the watch-movement therewith, also the independent ring-dials, with bezels, upon the line X of Fig. 3. Fig. 5 is a sectional view of the ring-dials, the regulator, and case upon the line Y Y of Fig. 3.

My improved. calendar-train is designed to be used in connection with a tlireequarterplate American watch movement stemwinderalthough I do not confine myself to its use in connection with said style of watchmovement. The calendar movement or train is separate from the watclrmovement and does not interfere with it. The calendartrain is driven from the center arbor of the watch-movement. The dials of the calendar part are separate and independent of each I other and of the front or time dial of the and separate, chiefly for the reason that by slipping or snapping off the outer one the watch can be adjusted by means of the regulator without disturbing the calendar-ham ds. This feature I regard as important and valuable. The first of these dials S, Figs. 1, 4, and 5, is called a ring-dial, the central portion being removed and the ring part snapped to the case or otherwise secured by means of its bezel S. (See Figs. 4 and 5.) It is placed over the regular watch-movement-that is, what some would call the back portion of the watch--and has marked upon its face, as shown in Fig. 1, thirty-one numbers or numerals to indicate the days of the month. The othercalendar-dial is indicated by B, Fig. 1. This dial covers the calendar train, and is also provided with a bezel R, Figs. at and 5, by which it is secured to the movement, the top plate, or other part by screws; or it may be snapped on in the usual manner known to watch-makers. It is further suitably marked upon its face to indicate the names of the week and the names of the months, each placed separately and substantially as shown in Fig. 1. The calendar-dials, thus being placed upon the back or reverse side of the watch from the ordinary time-face, can be seen by opening the back of the case or by inserting a watch-crystalv therein, as indicated in Figs. 4; and 5. By thus dividing the dials and placing them as described I secure ample room for the trains and the several hands, the parts are more easily seen, and, when used in a stem-winding watch, can be more cheaply made, and altogether I obtain substantial advantages overall other forms of calendar-watches known to me.

I will now proceed to explain the several parts of my calendaruncvement, referring to Figs. 2, 3, and 4..

c is apinion attached to the center arbor {U of the watch-movement. The said center arbor a: is driven by the watclrpower in the usual manner. The pinion c is driven by the center arbor m, and said pinion c communicates power to the rest of the calendar-train, as shown in the drawings. To explain this more specifically, the pinion e is provided with ten teeth, which teeth mesh with the teeth of wheel A--forty in number. On the top of wheel A is placed the pinion (4, having six. teeth,which mesh with the teeth of wheel 'Bthi rty-six in number-and driving said wheel. The wheel D is provided with seven large teeth, and is driven by pin 2, placed upon the upper side of wheel B, the said pin revolving with said wheel B. Upon the under side of wheel D,Fig. 3, is placed a small wheel d, having seven teeth, and fastened to large wheel D, and of course revolves with it. The object of wheel d will be hereinafter explained. Above the wheels already enumerated is placed the wheel 0. It is loosely ournaled upon the center arbor 0c, and is driven by the pin y, placed in the upper side of wheel B and revolved by said Wheel, the said pin y actuating said wheel 0 by its connection with the teeth formed upon the periphery of wheel 0, "the number of said teeth being thirty-one.

Fastened to the top plate of thewatch at one/end is the click E, the other end of said click formed to spring between the teeth of the small Wheel d, the object being to regulate the movement of the wheel D and hold the same at the proper place. A click K is also formed to engage the teeth of wheel 0, said click being journaled loosely at n and provided with an arm The spring m is secured at one end to the top plate and presses against the arm 70 of the click K at its other end, thus holding the end of the click K against or between the teeth of wheel 0, for the purposeof regulating the movement of the same. Upon the under side of wheel 0 is placed the pin f, which engages in the teeth of wheel F, placed under the said wheel 0, said wheel F having twelve teeth. Secured to the said wheel F, and underneath the same, is placed the small wheel G, provided with twelve teeth. Under the wheel F is placed the small wheel H, also provided with twelve teeth, and is driven by the meshing of its teeth with the teeth of small wheel G.

A click I is secured to the top plate of the watch at one end and springs between the teeth of small wheel G at the other end, to regulate the movements of the same.

The ordinary forms of regulator may be used with my improved calendarstrain; but I prefer one substantially of the character illustrated in the drawings.

Having described the principal parts of my improved device, I will now explain its mode of operation.

The pinion 0, being secured to the center arborw of the watch-movement, as heretofore explained, and shown in Fig. 4, is driven by the regular power of the watch in the usual manner. I thus derive my power in the most advantageous manner and without detriment to the watch-movement. This feature is pee culiar to my present invention. The pinion c has ten teeth and turns round once an hour, Its teeth mesh with the teeth of wheel A, provided with forty teeth, and turns round once in four hours. Pinion a has six teeth, and turns round once in four hours also, being fastened to wheel A. Its teeth mesh with the teeth of wheel B, having thirty-six teeth, and wheel B- turns round once in twenty-four hours. The pin 3 on wheel B strikes one of the teeth of wheel 0, moving it one tooth each twenty-four hours. The pin 2 on wheel B strikes one tooth of wheel D each twenty-four hours and moves it forward one tooth. The pin f on wheel 0 strikes a tooth of wheel F once 'in each thirty-one days, moving Wheel F one tooth. The small Wheel G, fastened to wheel F, has twelve teeth and meshes in the teeth of wheel H, also having twelve teeth. The wheels G, C, and D are regulated by the clicks I, K, and E, as described. In wheels H and D are placed a pivot or staff which carries the hands-via, H for the month and D for the day of the week. NVheel Ghas a hollow rim or projection upon its upper (back) face, to which is attached the hand for the dayof the month, as shown in Figs. 1 and 4.

It will thus be seen that the whole calendar-movement is actuated by the :pinion c, and the hands register the day of each month, the day of each week, and the month of each year, each upon its appropriate dial, as shown in Fig. 1, and that the calendar-movement does not in any way interfere with the action.

of the watch-movement, but each acts in unison and harmony. The unity of movement is caused by the connection of the calendar-movement with the watch-power through the pinion c, secured to the center arbor m, as hereinbefore described, and the space is so economized that the whole is easily placed in a stem-winding watch, three-quarter plate, of the American pattern.

My present invention is an improvement over other forms known to me. It can be run with the minimum of power; it enables the calendar-dials to be placed upon the back of r the watch entirely distinct from the timedial and hands; it enables the power to be taken from the center arbor of the watch; the simplicity of the several parts induces durability and cheapness in construction. Moreover, the calendar-movement does not interfere in any way with the turning of the hands of the time-movement or its adjustment, as the movements of all the hands are coincident-i. e.,if thetime-hands are moved forward or backward the calendar-hands will be moved correspondingly, and both will always agree in indicating the correct information intended.

In months that have less than thirty-one days the hand indicating the date of the month of the calendar is set forward the first day of each month to the proper date, and

ment, said wheel 0 being loosely journaled on the center arbor w, as hereinbefore explained.

Having now described my invention, what I claim, and desire to secure by Letters Patent of the United States, is-

1. The calendar movement herein described, consisting of the combination of the pinions c and a, wheels A, B, C, d, F, D, and H, pins 11,2, and f, clicks E, K, and I, and suitable indicating-hands, all arranged substantially as and for the purposes set'forth.

2. In a calendar-watch, the independent ring-dial S, for the day of the month, provided with the bezel S, and the independent dial R, having two faces, one for the days of the week and one for the months of the year, and provided with a bezel B, and both combined with a watch movement and case, and arranged in relation to the time-dial as her.e in described, all substantially as and for the purposes set forth.

3. In a calendar-watch, the calendar-train, consisting of the pinion 0, provided with the teeth, the wheel A, provided with forty teeth, the pinion a, provided with six teeth, the wheel B, provided with thirty-six teeth, the wheel D, provided with seven teeth, the wheel d, provided with seven teeth, the wheel G, provided with thirty-one teeth, the wheels F, G, and H, each provided with twelve teeth, and the clicks I K E and pins 31,2, and f, all combined with the center arbor of the watch-movement and adapted to operate substantially as and for the purposes set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 14th day of July, A. D. 1888.

BERNHARDT ROSENBURG.

Witnesses:

Bownom S. PARKER, H. C. THOMPSON,

It is hereby certified that in Letters Patent No. 412,796 granted October 15,1889,

upon the application of Bernhardt Rosenburg,

improvement in Calendar Watches, an error appears in the printed specification of Waltham, Massachusetts, for an requiring correction, as follows: The Word the at the end of line 24:, page 3, should read ten and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed, countersigned, and sealed this 12th day of November, A. D. 1889.

[SEAL] CYRUS BUSSEY,

Assistant Secretary ofthe Interim". Countersigned O. E. MITCHELL,

Com'lm'ssio-ner 0] Patents.

Letters Patent No. 412,796.

Correction in It is hereby certified that in Letters Patent No. 412,796 granted October 15, 1 upon the application of Bernhardt Rosenburg, of Waltham, Massachusetts, fc

improvement in Calendar Watches, an error appears in the printed specific:

requiring correction, as follows: The Word the at the end of line 24, page 3, sh

read ten and that the said Letters Patent should be read with this correction th' that the same may conform to the record of the case in the Patent Office.

Signed, countersigned, and sealed this 12th day of November, A. D. 1889.

[SEAL] CYRUS BUSSEY,

Assistant Secretary of the 1mm 0 ountersigned 1 G. E. MITCHELL,

Cmmnissioner of Patents. 

